Puzzle 565
Can you find the country hidden in the following sentence:
I really fear lions and tigers, but the animal I fear most though is the mouse.
Puzzle Copyright © Kevin Stone
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The country spans more than one word.
Answer
Mali.
I really fear lions and tigers, but the aniMAL I fear most though is the mouse.
Puzzle 566
At the annual BrainBashers puzzle discussion conference, 20 people attended.
At the start of the conference, each person shook hands with every other person, how many handshakes took place in total?
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How many hands did the first person shake?
Answer
190.
The first person shook hands with 19 others, the second had already shook hands with the first and therefore shook 18 hands, etc:
19 + 18 + 17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 190
Puzzle 567
How much soil is there …
… in a circular hole 2 metres deep and 1 metre across?
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How much soil is in any hole?
Puzzle 568
The local River Trent is 4,100 inches wide, which happens to be a fantastic number.
There is a magnificent, perfectly straight, bridge that spans the river at right angles.
During a recent survey of the area, it was found that one-seventh of the overall length of the bridge was on one bank of the river, and one-eighth of the bridge was on the other bank.
What is the total length of the bridge that spans the River Trent?
Puzzle Copyright © Kevin Stone
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What fraction of the length of the bridge is on the banks?
Answer
5,600 inches.
Reasoning
We know that 1 /7 + 1 /8 of the total length is on the banks of the river, and 1 /7 + 1 /8 = 15 /56 .
So the river width (4,100 inches) is the remaining 41 /56 of the bridge.
Therefore:
41 /56 x length = 4100
So:
length = 4100 x 56 /41
length = 5600
As required.
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